加拿大薄钢板建筑学会 CSSBI S6-2019

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CSSBI S6-2019:

Guide Specication for Lightweight Steel Framing

reproduced in any form without the written permission of the publisher.

SPECIFIER NOTES:

Lightweight steel framing includes wall, oor and roof framing,

generally from cold formed C-shaped steel members. This

specication is written on the assumption that structural design

of the framing is the responsibility of the Contractor. It also

assumes that division of the work between subcontractors is the

responsibility of the Contractor alone and done without reliance on

the specications.

For use as a contract document:

• Delete Specier Notes

• Choose appropriate selections in square brackets

• Delete selections in square brackets that do not apply

• Make any other project specic amendments that are

appropriate.

This publication replaces the previous edition dated January 2011.

1. GENERAL

1.1 Description of System

Lightweight Steel Framing includes Wind Bearing Studs,

Axial Load Bearing Studs, Floor Joists and Roof Joists.

.1 Wind Bearing Studs

.1 Wall studs subjected to lateral loads (no

axial loads other than self-weight and the

weight of applied nishes)

.2 Steel bridging

.3 Top and bottom track

.4 Head, sill and jamb members for wall

openings

.5 Stud, bridging and track connections

.6 Top and bottom connections to the main

structure including detailing to

accommodate oor and/or roof

deections.

.2 Axial Load Bearing Studs

.1 Wall studs subject to lateral and axial

loads

.2 Steel bridging

.3 Top and bottom track

.4 Lintel, sill and jamb members for wall

openings

.5 Cross bracing for lateral loads

.6 Connections

.3 Joists

.1 Floor and roof joists

.2 Headers and trimmers for oor or roof

openings

.3 Bridging

.4 Closure channels

.5 Connections including web stieners

Specier Note: Roof rafters, roof trusses, ceiling joists and

non-load bearing interior partition studs are outside the

scope of this specication. Refer to CSSBI S18 for a non-

load bearing stud guide specication.

1.2 Related Work

Specier Note: In the applicable related sections, reference

this section for the specication of Lightweight Steel

Framing Elements.

.1 Section [ 01___ ] Allowances for independent

inspection or testing.

.2 Section [ 03___ ] Concrete

.3 Section [ 04___ ] Masonry

Specier Note: Reference the section where masonry ties

connecting to steel studs are specied.

.4 Section [ 06___ ] Wood sheathing

.5 Section [ 07___ ] Insulation

Specier Note: Reference the section(s) where insulation in

the stud/joist space and exterior insulation are specied.

Canadian Sheet Steel Building Institute June 2019

652 Bishop St. N., Unit 2A, Cambridge, Ontario, Canada N3H 4V6 · Telephone (519) 650-1285 · Fax (519) 650-8081 · www.cssbi.ca

Canadian Sheet Steel Building Institute June 2019

652 Bishop St. N., Unit 2A, Cambridge, Ontario, Canada N3H 4V6 · Telephone (519) 650-1285 · Fax (519) 650-8081 · www.cssbi.ca

.6 Section [ ____ ] [ _________________ ]

Specier Note: List section(s) where other exterior

cladding, nishes or roong attached to the Lightweight

Steel Framing are specied.

.7 Section [ 07___ ] Air barriers and/or vapour

retarders

.8 Section [ 08___ ] Doors and windows

.9 Section [ 09___ ] Non load-bearing wall

framing systems

.10 Section [ 09___ ] Gypsum board

Specier Note: Reference the section(s) where gypsum

board nish attached to framing and exterior gypsum

sheathing is specied. If the gypsum board/sheathing is to

function as an air barrier, ensure that screw spacing, board

thickness, and orientation required by wind loads have been

covered there.

.11 Section [ _____ ] [ __________________ ]

1.3 References

Where referenced standards conict with this specication,

this specication governs.

Referenced standards refer to the latest edition.

Specier Note: As an alternative to specifying the “latest

edition”, add current dates to the standards listed below.

.1 National Building Code of Canada

.2 [Ontario] [ _____ ] Building Code

.3 [CAN/CSA-S16 Design of Steel Structures]

.4 [CSA-S136 North American Specication for

the Design of Cold Formed Steel Structural

Members

.5 [CSA W47.1 Certication of Companies for

Fusion Welding of Steel Structures]

.6 [CSA W59 Welded Steel Construction]

.7 [ANSI/AWS D1.3 Structural Welding Code –

Sheet Steel]

.8 [CSA A370 Connectors for Masonry]

.9 [CSA S304.1 Design of Masonry Structures]

.10 [ASTM A307 Standard Specication for

Carbon Steel Bolts and Studs, 60000 PSI

Tensile Strength]

.11 [ASTM F3125M, Standard Specication

for High Strength Structural Bolts, Steel

and Alloy Steel, Heat Treated, 120 ksi

(830 MPa) and 150 ksi (1040 MPa) Minimum

Tensile Strength, Inch and Metric

Dimensions]

.12 [ASTM A653/A653M Standard Specication

for Steel Sheet Zinc-Coated (Galvanized)

or Zinc-Iron Alloy Coated (Galvannealed) by

the Hot-Dip Process]

.13 [ASTM A792/A792M Standard Specication

for Steel Sheet, 55% Aluminum-Zinc Alloy-

Coated by the Hot-Dip Process]

.14 [CAN/CGSB-1.181 Ready-Mixed Organic

Zinc-Rich Coating]

.15 [CAN/ULC-S101 Standard Methods of Fire

Endurance Tests of Building Construction

and Materials]

.16 [CSSBI-61 Manufacturer Certication

Requirements for Cold Formed Steel

Framing Members]

.17 [AISI S240 North American Standard for

Cold-Formed Steel Structural Framing]

.18 [ ________ ]

Specier Note: List standards referenced elsewhere in this

specication.

1.4 Quality Assurance

Retain a Professional Engineer registered in [Canada]

[the province of __________ ] to design the Lightweight

Steel Framing System; to prepare, seal and sign all shop

drawings; and to perform eld review. Shop drawings shall

show both design and installation requirements

1.5 Design Criteria

.1 Design shall be based on Limit States

Design principles using factored loads and

resistances.

.2 Loads and load factors shall be in

accordance with the National Building

Code of Canada. For wind load calculations,

the reference velocity pressure, q, shall be

based on a 1 in 50 probability of being

exceeded in any one year.

Canadian Sheet Steel Building Institute June 2019

652 Bishop St. N., Unit 2A, Cambridge, Ontario, Canada N3H 4V6 · Telephone (519) 650-1285 · Fax (519) 650-8081 · www.cssbi.ca

.3 Resistances and resistance factors shall be

determined in accordance with the National

Building Code of Canada and CSA-S136.

.4 Conform to the requirements of re

rated assemblies [specied] [which have

been tested in accordance with CAN/

ULC-S101 and provide a re resistance

rating of [ ___________ ] ].

.5 Stud and joist depths are shown on the

drawings. Adjust stud and joist material

thicknesses and spacings, as required by

the design criteria. Use greater or lesser

stud and joist depths only if approved by the

[Project Engineer] [Architect].

Specier Note: Note that maximum spacings (Section 1.5.6)

and minimum design thicknesses (Section 1.5.7) must also

be considered. In addition, to avoid contractual confusion:

• Do not show stud and joist thicknesses or spacings on

the Architectural or Structural drawings

• Do not use gauge as a thickness designation.

.6 Space wall studs at [305] [406] [610]

[ ____ ] mm maximum. Space oor joists at

[305] [406] [610] [ ____ ] mm maximum.

Space roof joists at [305] [406] [610]

[ ____ ] mm maximum. Use lesser stud and

joist spacings if required by the design

criteria.

Specier Note: The structural performance of the collateral

facing materials such as gypsum drywall, plywood or

OSB suboors, roof cladding and wall cladding and their

associated performance as air barriers, vapour retarders,

etc. will also limit the spacing of supporting members. In

addition, on projects with axial load bearing studs, use

the same spacing for joists and wall studs to allow vertical

alignment of roof, oor and wall members.

.7 For studs, track and joists, conform to the

design thicknesses in Table 1. Use greater

stud, track and joist design thicknesses if

required by the design criteria

Table 1: Minimum Thicknesses

Stud, Track

or Joist Depth

(mm)

Minimum Base

Steel Thickness

Exclusive of

Coating (mm)

Design

Thickness

Exclusive of

Coating (mm)

92 0.836 0.879

102 0.836 0.879

140 0.836 0.879

152 0.836 0.879

203 1.087 1.146

254 1.367 1.438

305 1.720 1.811

356 1.720 1.811

Specier Note: The minimum thicknesses in Table 1 are

95% of the design thickness as limited by CSA-S136

[For wall studs supporting brick veneer, the minimum

thickness exclusive of coating shall be the greater of

the minimum thicknesses in Table 1 or [1.087 mm]

[ _____ ] ].

Specier Note: The minimum design thicknesses in Table 1

satisfy the requirement in S136 for web height to thickness

ratio not greater than 200 assuming an inside bend radius

of 2t.

.8 The minimum thickness for bridging channel

shall be 1.087 mm for studs and 1.367 mm

for joists. Use greater bridging channel

design thickness if required by the design

criteria.

.9 The minimum thickness for clip angles shall

be 1.367 mm for studs and 1.720 mm for

joists. Use greater clip angle thickness if

required by the design criteria.

.10 Maximum exural deections under

specied live or wind loads shall conform to

the following:

.1 Wall studs supporting masonry veneer

shall meet the requirements of CSA

S304.1 with stud deections limited to

L/360.

Specier Note: The deection of steel studs supporting

masonry veneer is controlled by the requirements of the

masonry design standard, CSA S304.1.

.2 Wall studs supporting other nishes,

L/360.

.3 Floor joists, [L/360] [L/480] [ ______ ].

Specier Note: The L/360 limit has been used historically.

More recently, L/480 has been introduced to help control

oor vibrations.

.4 Roof joists, [L/300] [L/360].

Specier Note: For roofs supporting nishes not susceptible

to cracking, use L/300. For roofs supporting nishes that

are susceptible to cracking, use L/360. More relaxed

deection limits may be appropriate for industrial type

buildings. Refer to CAN/CSA S16 Appendix D for additional

guidance.

.5 Building sway due to all eects, 1/400 of

building height or 1/500 of storey height.

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摘要：

加拿大薄钢板建筑学会CSSBI S6-2019标准是专门针对薄钢板结构设计、制造与安装的权威技术规范，适用于建筑行业中冷弯型薄壁钢构件的工程应用。该标准涵盖了材料性能、截面设计、连接节点、防腐处理及施工验收等关键环节，旨在确保建筑结构的安全性与耐久性。CSSBI S6-2019由加拿大薄钢板建筑学会（CSSBI）发布，是加拿大建筑规范体系中的重要组成部分，对于从事钢结构设计、施工及质量控制的工程师、建筑师和承包商具有极高的参考价值。了解并遵循该标准，有助于提升建筑项目的合规性、抗震性能及生命周期

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